Front-feed paer carriage construction for accounting and the like machines



Feb. 3, 1953 T M. BUTLER 2,627,333

FRONT-FEED PAl ER CARRIAGE CONSTRUCTION FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April 7. 1949 18 Sheets-Sheet l I NVENTOR. 7710mm .M. Bums/2 BY 0 r fl ATTORNEY S Feb. 3, 1953 T. M. BUTLER 2,627,333

FRONT-FEED PAPER CARRIAGE CONSTRUCTION FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April 7. 1949 ,18 Sheets-Sheet2 INVENTOR. THoMAs M. Bunfl? ATTORNEYS,

Feb. 3, 1953 T. M. BUTLER 2,627,333

FRONT-FEED PAPER CARRIAGE CONSTRUCTION FOR ACCOUNTING AND THE LIKE MACHINES 1 l8 Sheets-Sheet 5 Original Filed April 7. 1949 INVENTOR. THOMAS M. BUTLER ATTORNEYS 18 Sheets-Sheet 4 Q INVENTOR. E 771/0MA5 M. BUTLER ATTORNEYS T. M. BUTLER FRONT-FEED PAPER CARRIAGE CONSTRUCTION Feb. 13,1953

- FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April 7. 1949 T. M. BUTLER FRONT-FEED PAPER CARRIAGE CONSTRUCTION Feb. 3, 1953 FOR ACCOUNTING AND THE LIKE MACHINES Origiqal Filed April '7. 1949 18 Sheets-Sheet 5 Feb. 3, 1953 T. M. BUTLER 2,627,333

. FRONT-FEED PAPER CARRIAGE CONSTRUCTION FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April 7. 1949 18 Sheets-Sheet 6 INVENTOR. THOMAS M. B TLER ,l- I247 ATTORNEYS Feb. 3, 1953 T. M. BUTLER 2,627,333

FRONT-FEED PAPER CARRIAGE CONSTRUCTION FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April 7. 1949 18 Sheets-Sheet 7 INVENTOR.

THOMAS M. Buns/2 ATTORNEYS Feb. 3, 1953 'r. M. BUTLER 2,627,333

FRONT-FEED PAPER CARRIAGE CONSTRUCTION FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April 7. 1949 18 Sheets-Sheet 8 INVENTOR. THOMAS M. BUTLER BY KWLZQ (W ATTORNEYS Feb. 3, 1953 T. M. B LER 2,627,333

FRONT-FEED PAPER CA AGE CONSTRUCTION FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April 7. 1949 18 Sheets-Sheet 9 INVENTOR. THOMA; M. BUTLER decu ATTORNEYS Feb. 3, 1953 T, M BUTLER 2,627,333

. FRONT-FEED PAPER CARRIAGE CONSTRUCTION FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April 7. 1949 1 8 Sheets-Sheet l0 Fig.2 0.

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ATTORNEYS Feb. 3, 1953 I FRONT-FEED PAPER CARRIAGE CONSTRUCTION FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April '7. 1949 Fig. 2 3.

Feb. 3, 1953 T BUTLER 2,627,333

FRONT-FEED PAPER CARRIAGE CONSTRUCTION FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April '7. 1949 18 Sheets-Sheet l2 INVENTUR. THOMAj M. BUTLER ATTORNEY .5

Feb. 3, 1953 'r. M. BUTLER 2,627,333 FRONT-FEED PAPER CARRIAGE CONSTRUCTION FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April '7. 1949 18 Sheets-Sheet l5 mmvron. THOMAS M. BUTLER BY M 'L ATTORNEYS T. M. BUTLER FRONT-FEED PAPER CARRIAGE CONSTRUCTION Feb. 3, 1953 FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April '7. 1949 18 Sheets-Sheet l4 INVENTOR 7H0MA5 M. BUTLER BY ATT 15m ORNEYS M. BUTLER FRONT-FEED PAPER CARRIAGE CONSTRUCTION FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April '7. 1949 Feb. 3, 1953 18 SheetsSheet l5 INVENTOR THOMAS M. BUTLER 4.. ATTORNEYS Feb. 1953 1'. M. BUTLER FRONT-FEED PAPER CARRIAGE CONSTRUCTION FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April 7. 1949 18 Sheets-Sheet l6 INVENTOR THOMAS M. BUTLER BY M Y- ATTORNEYS Feb. 3, 1953 T. M. BUTLER 2,627,333

FRONTFEED PAPER CARRIAGE CONSTRUCTION FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April 7. 1949 18 Sheets-Sheet 17 11v VEN TOR. THOMAS M. BUTLER BY 7x49 M g ATTORNEYS 1953 T. M. BUTLER FRONT-FEED PAPER CARRIAGE CONSTRUCTION FOR ACCOUNTING AND THE LIKE MACHINES Original Filed April 7. 1949 18 Sheets-s 18 l NN dww nVNx m n mM m m M/ T LA l T? B Patented Feb. 3, 1953 UNITED STATES PATENT OFFICE FRONT-FEED PAPER CARRIAGE CON- STRUCTION FOR ACCOUNTING AND THE LIKE MACHINES Thomas M. Butler, Detroit, Mich, assignor to Burroughs Adding Machine Company, Detroit, Mich., a corporation of Michigan 4 Claims.

This invention relates to improvements in front-feed paper carriage constructions for accounting and the like machines.

An object of the invention is to provide an improved construction of power operated frontfeed paper carriage.

A further object is to provide a paper carriage operable by power to adjust it from a normal working condition to an open-throat or frontfeed condition and to return it to its normal closed or Working condition and to provide means to prevent operation of the power means to return the carriage to normal condition when the carriage is not properly conditioned for such return.

A further object is to provide means to prevent an operation of the machine provided with such a carriage from being initiated while the carriage is being adjusted from its normal working condition to its open or front-feed condition.

A further object of the invention is to provide a carriage with a platen movable from a normal working or printing position to a retracted or open throat position and to provide means to decelerate and cushion the final portions of such movements of the platen.

Further objects and advantages of the invention will appear from the following detailed description referring to the accompanying drawings in which:

Fig. 1 is a perspective view of the assembled machine enclosed in its casing as seen from a point forwardly, above and to the right thereof;

Fig. 2 is another perspective View of the assembled machine enclosed in its casing as seen from a point above, rearwardly and to the right thereof;

Fig. 3 is a spread perspective of portions of the paper carriage as viewed from a point forwardly, rightwardly and above;

Fig. 4 is a partial section of the paper carriage and shows certain elements of the machine for operating the paper carriage and elements controlled by the paper carriage as viewed from the right;

Fig. 5 is a detail of the line-spacing mechanism;

Fig. 6 is a front elevation of the paper carriage in opened condition;

Figs. 7 and 8 are details of the form-heading holder;

Fig. 9 is an axial vertical section of the platen twirler clutch and neighboring elements on the platen shaft;

Fig. 10 is a fore-and-aft vertical section 2 through the paper carriage just inwardly of the right-hand carriage frame end plate and looking leitwardly, the carriage being in opened condition;

Fig. 11 is a view similar to Fig. 10 but omitting some of the parts and showing others of the parts in moved position;

Fig. 12 is a fore-and-aft vertical section through the platen frame omitting the platen and platen mounting parts;

Fig. 13 shows some of the parts of Fig. 12 in moved position;

Figs. 14 and 15 show the platen, platen frame, paper chutes and other paper guide elements in fore-and-aft vertical section as seen from the right; 1

Figs. 16, 17 and 18 are details of adjustable guides and stops for front-fed papers;

Fig. 19 is a detail perspective of a front-feed paper chute member;

Fig. 20 is a perspective of a portion of one of the paper guide members;

Fig. 21 is a bottom plan view of one of the lower journal pressure rollers and supporting means therefor;

Fig. 22 is a top plan view of a pressure roller assembly for front-fed papers;

Fig. 23 is a top plan view of a paper carriage operating power transmission drive unit hereinafter referred to as the gear box together with various control parts mounted thereon;

Fig. 24. is a horizontal section through the lower part of the gear box;

Fig. 25 is a perspective view of certain carriage control keys and associated control parts;

Fig. 26 is a detail;

Fig. 27 is a spread perspective of control elements associated with the gear box and involved in controlling carriage movements, opening and closing of the carriage, and line-spacing;

Fig. 28 is another perspective including certain of the elements of Fig. 27 and additional control elements involved in the control of the carriage;

Fig. 29 is a laterally expanded perspective of the carriage opening and closing drive means and control means associated therewith;

Fig. 30 is a perspective of certain elements associated with the carriage opening and closing drive means and controlling the motor-starting switch;

Figs. 31 and 32 illustrate the construction of the clutches coupled in the carriageopening and closing and platen line-spacing drives;

Fig. 33 illustrates the engaging and disengag- 3 ing control means for the carriage opening and closing drive clutch;

Fig. 34 illustrates the engaging and disengaging control means for the line-spacing drive clutch;

Fig. 35 is a spread perspective of certain interlock means associated with the carriage opening and closing drive means and with the control means for the main drive clutch of the machine;

Fig. 36 is a perspective view of portions of the control means for the line-spacing drive clutch; and.

Fig. 37 illustrates an interlock means assoclated with the line-spacing drive, with the carriage opening and closing control and with the machine cycling control.

The illustrated calculating and accounting znachine is that disclosed in full detail in my copending application Serial No. 174,696, filed July 19, 1950, as a continuation-in-part of my prior application Serial No. 85,971, filed April '7, 1949, since abandoned, of which the present application is a division. Other divisional applications are Serial No. 181,401, filed August 25, 1950, Serial No, 196,844, filed November 21, 1950, Serial No. 252,713, filed October 23, 1951, Serial No. 278,268, filed March 24, 1952, and Serial No. 282,843, filed April 17, 1952. Only those structures and mechanisms of the machine with which the present invention is concerned will be described in detail herein. To provide for simple and easy identification of corresponding elements of both disclosures, the parts illustrated and described herein are designated by the same reference numbers as in the abovementioned copending application.

Throughout the following description, consistently. with the description in the above-mentioned copending application, the words clockwise and counterclockwise will be used to describe positions and motions of elements of the machine as seen by an observer in front of, at the right, or above the moving parts in the positions in which they are located in the machine. The words right, rightward, left and leftward will be employed to describe positions and motions as seen by an observer in front of the machine. The words above, up, upward, below, down, downward, front, forward, rear, rearward, and behind will be employed to describe positions and motions as they occurin the machine when it is in its normal upright position.

As disclosed fully in the above-mentioned copending application, the machine is a key-set, electric motor-driven machine adapted for a great variety of accounting, bookkeeping and other work involving calculation. It has a traveling front-feed paper carriage into which record material and work papers may be inserted from the front. I Operation of the machine may be initiated manually by depression of various motor bars and live function control keys on the keyboard or automatically by automatic function control means operating in accordance with the columnar positioning of the paper carriage. Certain of the motor bars as well as the automatic function control means also control operations of the paper carriage and parts thereof.

As will be disclosed in detail herein, the paper carriage supports a platen which is movable from its printing position to a retracted or front-feed position and V reversely. Elements cooperating with the platento form a front-feed paper throat are automatically adjusted to open-throat position when the platen is retracted from printing position and automatically restored to closed- 4 throat position as the platen is returned to printing position. The opening and closing of the carriage, that is, the movements or the platen from printing to retracted or front-feed position and reversely as well as the adjustment of the throat-forming elements to their open and closedthroat positions are efiected by power derived from the machine drive motor independently of the columnwise movement or non-movement of the paper carriage and transmitted through direct drive connections which are effective independently of the cycling of the machine. The

control of the opening and closing of the carriage can be effected automatically during machine operation as well as manually through a key on the keyboard without cycling the machine. Initiation of machine cycling is prevented while .the carriage opening and closin key is depressed, while the carriage is opening, and While the carriage is not in proper condition for automatic closing. Depression of the carriage opening and closing key is prevented while the machine is cycling and while the carriage is open and not in proper condition for closing.

The front-feed construction of the carriage is of an improved form providing for very easy and rapid insertion, alignment and removal of record material and work sheets. The paper guides are adapted to rapid and easy changeover to accommodate the changes in paper sizes which may be required when changing from any program of work to any other program of work to be performed on the machine.

PAPER CARRIAGE- C'arrz'age frame and mounting The carriage W56 is supported on a movable race member IE6! (Fig. 3) having front and rear rail members with V-erooves Hit?) and N63 and tied together in parallel spaced relation by laterally spaced connecting portions. The race member use: is supported for movement crosswise of the machine by two lines of bearing rollers 1658 received partly in the grooves liltifl and I053 and partly in facing V-grooves in race rails '43 and i i (Fig. 10) which are mounted on the machine frame as disclosed in the above-mentioned copending application with small rollerretaining plates Hill (Figsl and 2) secured on their ends.

Theright and left carriage frame end plates Hide and will respectively (Fig. 3) have the forward parts of their lower edge portions secured to the respective ends of the movable race member 1526i by headed screws passing through the plates I889 and will and threaded into the ends of the front and rear race rails of the member IBM. The plates H159 and mm are also braced and tied together by a rear cross rod I812 (Figs. 2 and 3) having at each end a reduced portion (not shown) threaded into the inward end of a post I973, the outer end of which is secured to the respective side plate i969 or I Lila by means of a headed screw threaded into the post through the side plate. The plates lttQ and loll! are further braced and tied together by a guide supporting member i51 (Figs. 2, 3, e and 10) against the ends of which the plates W59 and I075 are secured by pairs of headed screws passing through the respective plates and threadedinto the ends of the member mm.

A light covcrplate i375 extends across the lower portion of the front of the carriage and has, at its upper corners, ears secured, asby screws, to the side plates i869 and I010. The 

